Aleksander Kozak
Czasopismo Techniczne, Chemia Zeszyt 2-Ch (24) 2014 , 2014, s. 55 - 61
In order to prolong concrete durability, polymeric coatings are commonly used. The coatings protect concrete against ingress of hazardous media. The coatings have to be characterized by long-term weathering resistance, good adherence to concrete substrate and appropriate elasticity to have crack bridging ability. Ensuring appropriate homogeneity of the material is very important for obtaining high quality of hardened coating, especially while comparing some features of the material under laboratory conditions. The paper deals with comparison of some properties of acrylic coating such as displacement and damage energy depending on a preparation method (with and without deaerating) and a type of a agitator used.
Aleksander Kozak
Czasopismo Techniczne, Volume 3 Year 2017 (114), 2017, s. 41 - 45
https://doi.org/10.4467/2353737XCT.17.030.6341Aleksander Kozak
Czasopismo Techniczne, Chemia Zeszyt 1 Ch (17) 2015, 2015, s. 37 - 45
https://doi.org/10.4467/2353737XCT.15.103.4051Concrete structures operating under different environmental conditions are subject to the action of aggressive gaseous and liquid media, which leads to their degradation. Even well-designed buildings, after time, can have problems to fulfil appropriate requirements concerning their further service life. Fiber reinforced mortars based on cement modified with different types of polymers are commonly used materials for renovating concrete structures. They should fulfil requirements concerning their high adhesion to concrete, minimum tensile strength, compatibility with repaired concrete and low shrinkage. The aim of the work was to compare the performance of three reinforced PCMs based on various polymers. The following features were tested: adherence to concrete, shrinkage and flexural strength.